The Mozilla Project has posted version 0.8 of
its XForms extension for
Firefox 1.5 and later. Mozilla XForms support has been
developed by IBM, Novell, and
independent contributors. Improvements in this release include
SOAPAction on submission, mediatype
on output
elements,
range support for many different datatypes,
resource
element and attribute for submission. It's not a complete XForms implementation yet, but it's getting there.